Speed-indicator.



PATBNTED NOV. 24, 1903 I. L. EBELHARE.

SPEED INDICATOR.

APPLICATION FILED JUNE 25, 1903.

N0 MODEL.

ms mums PETERS o0. PNOYQ-LITHO. wasumumw. a. c.

llnrrn STATES Patented November 24, 1.905;

ATENT tribe.

SPEED -BNDICZATOR.

SPECIFICATION forming part of Letters Eatent No. 744,960, dated November24, 1903.

Application filed June 25,1908. Serial No.162.981. (N0 model.)

T0 at whom it may concern.-

Be it known that I, FREDERICK L. EBEL- HARE, a citizen of the UnitedStates, residing at the city of Philadelphia, in the county ofPhiladelphia and State of Pennsylvania, have invented certain new anduseful Improvements in Speed-Indicators, of which the fol lowing is aspecification.

My invention has relation to a centrifugal speed indicator for vehicles,engines, and other purposes, and in such connection it relates to theconstruction and particular arrangement thereof.

The principal object of my invention is to provide a comparativelysimple and effective centrifugal speed-indicator for use on automobilesand other machines or appliances.

My invention, stated in general terms, consists of a centrifugalspeed-indicator constructed and arranged in substantially the mannerhereinafter described and claimed.

The nature and scope of my invention will be'more fully understood fromthe following description, taken in connection with the accompanyingdrawing, forming part hereof, in which is illustrated in elevation anindicator embodying the particular features of my present invention.

Referring to the drawing, a is a suitable support forming a part of amotor-vehicle or an engine, to which is secured by means of bolts a anda a bracket 29. The bracket 1) is provided with an extension 6, adaptedto support a bevel-gear c, which meshes with a bevel-gear c, secured toa shaft 0 mounted in a laterally-projecting arm 11*, preferably integralwith the bracket 1). To the shaft 0 is secured a pulley 0 which by meansof a belt or the like (not shown) receives its rotary motion from anysuitable source of power. (Not shown.) The bevel-gear c is provided withlugs c and 0 to which are pivotally secured links at and d, adapted toengage arms d and (1 carried by a split sleeve d The sleeve d is movablysecured to a collar e, preferably integral with a spindle 6, having arange of reciprocatory movement in a vertical direction in the bracketb. To permit of the movements of the spindle 6 within the bracket 1) andat the same time to prevent the rotation of the same, the spindle isprovided at or near its upper end with a pin e adapted to engage a slotb arranged in the bracket 1). Below the collar 6 the spindle e isprovided with a weight f, which tends to hold the weights (1 and (1,arranged at the free ends of the arms 61 and C1 in their normalposition, which is fixed by the pin 9 of the spindle c and by the lugs cand c of the bevel-gear c. As soon as the bevel-gear c is rotated bymeans of the bevel-gear c and pulley c the links d and cl, weighted armsd and d and the sleeve (1 will be readily rotated around the spindle e.The slightest rotation of the balls or weights d and d however, willmove the same outward away from the spindle e by the centrifugal forcegenerated,

and the spindle 6 will instantly respond to the centrifugal action and.will be lifted upward against the action of the weight f, tending todepress the spindle by gravity. The bracket 1) is furthermore providedwith an integral arm N, to which is pivotally secured in the point 12 alever 9, adapted to engage the pin 2 of the spindle e. To the free endof the lever g is secured a cord or chain g, passing over pulleys h and77/ secured to the support ct, and which cord is fastened to a drum h,mounted on a shaft h. This drum h by the intervention of a spiral orfusee springt', secured at one end to the drum 7?. and with the otherend to the shaft 72/, tends to wind the cord 9 upon itself and to holdthe same taut. To the shaft h of the drum his secured a pointer 7t,which is adapted to travel over a dial-plate It, having any suitablegraduation. As soon as the spindle c has been raised by the rotation ofthe weighted arms 61 and 61 links at and d, and bevel-gear 0 through theaction of centrifugal force and by means of the split sleeve 01 themovement so imparted to the spindle is transmitted to the lever g and bythe same and the cord g to the drum 71. From this drum the movement istransmitted to the shaft 71 by the springt, and the pointer is rotatedover the dial 7c, recording by its movement the upward movement of thespindle e. The extent of this upward movement will of course beproportional to the speed of rotation imparted to the weighted arms dand d by means of the bevel-gears c and c. For this reason the speed oftravel of a vehicle or the number of revolutions made by a certain partof an en- KOO gine or the like will be instantly recorded from itsstarting-point or zero to the highest speed obtainable by said vehicleor engine in its travel.

Having thus described the nature and object of my invention, what Iclaim as new, and desire to secure by Letters Patent, is

1. In a speed-indicator, a bracket, a spindle supported at one end bysaid bracket and slidably arranged therein, means engaging the other endof said spindle to hold the same in normal position in said bracket,rotary means supported by said bracket and loosely surrounding saidspindle, a sleeve loosely ongaging said spindle and fixed in itslongitudinal position thereon, weighted arms supported by said sleeveand links connecting said weighted arms with said rotary means totransmit the rotary movement thereof to said weighted arms so as torotate the same around said spindle.

2. In a speed-indicator, a bracket, a spindle supported at one end bysaid bracket and slidably arranged therein, means engaging the other endof said spindle to hold the same in normal position in said bracket,rotary means supported by said bracket and loosely surrounding saidspindle, a sleeve loosely engaging said spindle and fixed in itslongitudinal position thereon, weighted arms supported by said sleeveand links connecting said weighted arms with said rotary means totransmit the rotary movement thereof to said weighted arms so as torotate the same around said spindle and to raise and lower said spindlein said bracket by said weighted arms.

3. In a speed-indicator, a bracket havinga slot and an extension, saidbracket supporting a bevel-gear, a spindle movably arranged in saidbracket and having a pin engaging and sliding in the slot of saidbracket and preventing the rotation of said spindle in the bracket, acollar arranged on said spindle and movably supporting a sleeve, linksand weighted arms arranged between the bevelfor rotating said bevel-gearon said bracket to impart to said weighted arms, links and sleeve arotary movement on said spindle.

4. In a speed-indicator, a bracket havinga slot and an extension, saidbracket supporting bevel-gears, a spindle movably arranged in saidbracket and having a pin engaging and sliding in the slot of saidbracket to prevent the rotation of said spindle in thebracket, a collararranged on said spindle and movably supporting a sleeve, links andweighted arms arranged between one of said bevelgears and said collarand supported by said collar and the pin of said spindle, a weightconnected with said spindle for holding the weighted arms and links intheir normal position with respect to said spindle, and means forrotating said bevel-gears of said bracket to impart to said weightedarms, links and sleeve a rotary movement on said spindle to actuate saidarms by centrifugal force and operate said spindle, in combination witha registering device, consisting of a lever supported by said bracketfor engaging said pin and actuated by said spindle, a dru m, a shaftsupporting said drum, a spring connecting said drum with said shaft, apointer arranged on said shaft, a dial arranged between said drum andpointer, a cord connecting said lever with said drum to transmit themovements of said spindle and lever to said drum, shaft and pointer soas to register said movements on said dial.

In testimony whereof I have hereunto set my signature in the presence oftwo subscribing Witnesses.

FREDERICK L. EBELHARE. Witnesses:

J. WALTER DOUGLASS, THOMAS M. SMITH.

